‘What is it?’ Harry asked shakily. ‘This? It is called a Pensieve,’ said Dumbledore. ‘I sometimes find, and I am sure you know the feeling, that I simply have too many thoughts and memories crammed into my mind.’ ‘Er,’ said Harry, who couldn’t truthfully say that he had ever felt anything of the sort.

Came across two pretty interesting links about sex (they are work-safe).This is an article about how you could get your vitamin B12 needs met through oral sex - good advice for vegans ;)
And this was a very interesting (and hilarious) talk entitled “10 Things You Didn’t Know About Orgasm”.